[Bug 1331047] Re: Unable to upgrade to Ubuntu 14.04

[unsound]

I found a workaround: Uninstall flightgear and its dependencies before
the upgrade.

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https://bugs.launchpad.net/bugs/1331047

Title:
  Unable to upgrade to Ubuntu 14.04

Status in “ubuntu-release-upgrader” package in Ubuntu:
  New

Bug description:
  When attempting to upgrade from Ubuntu 13.10 to 14.04 I encounted the
  issue described by the attachments. It is never able to calculate the
  package setup for the resulting upgraded system and exits without
  performing an upgrade.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: ubuntu-release-upgrader-core 1:0.205.6
  ProcVersionSignature: Ubuntu 3.11.0-20.35-generic 3.11.10.6
  Uname: Linux 3.11.0-20-generic x86_64
  NonfreeKernelModules: nvidia zfs zunicode zavl zcommon znvpair
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  CrashDB: ubuntu
  Date: Tue Jun 17 17:21:42 2014
  EcryptfsInUse: Yes
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to saucy on 2014-06-17 (0 days ago)
  VarLogDistupgradeTermlog:

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